A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF Receiver
An amplitude demodulator with a large dynamic range, based on microelectromechanical systems (MEMS), is proposed in this paper. It is implemented as a cascade of a capacitive and a thermoelectric sensor. Two types of the transducer can improve the measurement range and enhance the overload capacity....
| Główni autorzy: | , , , |
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| Format: | Artykuł |
| Język: | English |
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MDPI AG
2021-12-01
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| Seria: | Micromachines |
| Hasła przedmiotowe: | |
| Dostęp online: | https://www.mdpi.com/2072-666X/12/12/1515 |
| _version_ | 1827671118971928576 |
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| author | Hao Yan Xiaoping Liao Chenglin Li Chen Chen |
| author_facet | Hao Yan Xiaoping Liao Chenglin Li Chen Chen |
| author_sort | Hao Yan |
| collection | DOAJ |
| description | An amplitude demodulator with a large dynamic range, based on microelectromechanical systems (MEMS), is proposed in this paper. It is implemented as a cascade of a capacitive and a thermoelectric sensor. Two types of the transducer can improve the measurement range and enhance the overload capacity. This MEMS-based demodulation is realized by utilizing the square law relationship and the low-pass characteristic during the electromechanical and thermoelectric conversion. The fabrication of this device is compatible with the GaAs monolithic microwave integrated circuit (MMIC) process. Experiments show that this MEMS demodulator can realize the direct demodulation of an amplitude modulation (AM) signal with a carrier frequency of 0.35–10 GHz, and cover the power range from 0 to 23 dBm. This MEMS demodulator has the advantages of high power handling capability and zero DC power consumption. |
| first_indexed | 2024-03-10T03:33:38Z |
| format | Article |
| id | doaj.art-d1ee6148a13c45e1a1cbd957d7733e3f |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T03:33:38Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-d1ee6148a13c45e1a1cbd957d7733e3f2023-11-23T09:36:25ZengMDPI AGMicromachines2072-666X2021-12-011212151510.3390/mi12121515A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF ReceiverHao Yan0Xiaoping Liao1Chenglin Li2Chen Chen3National ASIC Research Center, Southeast University, Nanjing 210096, ChinaKey Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, ChinaKey Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, ChinaKey Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, ChinaAn amplitude demodulator with a large dynamic range, based on microelectromechanical systems (MEMS), is proposed in this paper. It is implemented as a cascade of a capacitive and a thermoelectric sensor. Two types of the transducer can improve the measurement range and enhance the overload capacity. This MEMS-based demodulation is realized by utilizing the square law relationship and the low-pass characteristic during the electromechanical and thermoelectric conversion. The fabrication of this device is compatible with the GaAs monolithic microwave integrated circuit (MMIC) process. Experiments show that this MEMS demodulator can realize the direct demodulation of an amplitude modulation (AM) signal with a carrier frequency of 0.35–10 GHz, and cover the power range from 0 to 23 dBm. This MEMS demodulator has the advantages of high power handling capability and zero DC power consumption.https://www.mdpi.com/2072-666X/12/12/1515AM demodulatormicroelectromechanical systems (MEMS)capacitivethermoelectric |
| spellingShingle | Hao Yan Xiaoping Liao Chenglin Li Chen Chen A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF Receiver Micromachines AM demodulator microelectromechanical systems (MEMS) capacitive thermoelectric |
| title | A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF Receiver |
| title_full | A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF Receiver |
| title_fullStr | A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF Receiver |
| title_full_unstemmed | A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF Receiver |
| title_short | A Cascaded MEMS Amplitude Demodulator for Large Dynamic Range Application in RF Receiver |
| title_sort | cascaded mems amplitude demodulator for large dynamic range application in rf receiver |
| topic | AM demodulator microelectromechanical systems (MEMS) capacitive thermoelectric |
| url | https://www.mdpi.com/2072-666X/12/12/1515 |
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